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20 lines
694 B
Plaintext
20 lines
694 B
Plaintext
% lvm
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# Stop caching a volume and free its cache volume
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sudo lvconvert --uncache <lv>
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# Use spare space on a physical volume for (unencrypted) swap
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sudo lvcreate -n <swaplv> -l100%PVS <vg> <pv> && sudo mkswap /dev/<vg>/<swaplv> && sudo swapon -p20 /dev/<vg>/<swaplv>
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# Drop and free a swap volume
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sudo swapoff /dev/<vg>/<swaplv> && sudo lvremove /dev/<vg>/<swaplv>
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# Use spare space on a physical volume for writeback caching another logical volume
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sudo lvcreate -n <cachepool> -l100%PVS <vg> <pv> && sudo lvconvert --type cache --cachemode writeback --cachepool <cachepool> <vg>/<targetlv>
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# Tell a volume to flush all cache without uncaching
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sudo lvchange --cachepolicy cleaner <lv>
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